Top tip: if you want to make sure you images don’t get automatically resized and have a better outcome, you can send your images in all the sizes as follows:

72×60

90×75

138×115

180×60

356×200

Source : https://www.ligatus.com/en/guidelines

At Schwartz Consulting, we offer a strong methodology and an on-going support at every stage of your traffic acquisition, from headlines creation to landing page optimisation. Contact us to find out more.